The application rate of Q4 Plus Turf Herbicide varies depending on what type of turfgrass you have. Cool Season Grasses: 2.6 - 3 oz. per 1,000 sq. ft. (7 - 8 pints per acre) Warm Season Grasses: 1.8 - 2.6 oz. per 1,000 sq. ft. (5 - 7 pints per acre).
Q4 Plus Turf Herbicide is applied at the following rates:
Broadcast Treatments for Cool Season Turfgrass (kentucky bluegrass, perennial ryegrass, fescues, annual bluegrass, rough bluegrass, annual ryegrass)- Use rate per Application is 7 to 8 pints per acre or 2.6 to 3.0 fl oz/1000 sq/ft. When broadcasting, your water volume may change so while the concentration of product per area is the same as the spot treatment. If your turf is very dense, you may need 2-4 gallons of water over 1000 sq/ft vs the only 1 gallon needed for spot treatments.
Q4 Plus Turf Herbicide is not labeled for use on Centipede grass. It can cause Zoysia to become yellow.
Yes, Q4 Plus Turf Herbicide is labeled for poison ivy. Apply this product to broadleaf weeds that are young and actively growing for the best results.
Q4 Plus Turf Herbicide should not be applied over or near the base of a newly planted tree. We recommend to apply at least 5 feet outside the dripline.
Q4 Plus Turf Herbicide will suppress Bahia in Bermuda grass.
Q4 Plus Turf Herbicide should not be used to treat weeds under the canopy or within the drip line of trees. Per the product label, this product cause injury to non-target plants if applied to foliage, stems, or roots.
Yes, Q4 Plus Turf Herbicide can be used to control barnyardgrass in a Bermuda lawn.
Q4 Plus Turf Herbicide can be applied as broadcast twice a year with 30 days in between each application as directed on the label.
The product label for Q4 Plus Turf Herbicide states that you should not apply the product above 90 degrees. Although it does not give a specific temperature for being too cold, most herbicides should be applied between 65 degrees and 85 degrees, when the target weeds are actively growing.
It is recommended that you wait until the second or third mowing or at least 28 days after emergence to re-apply Q4 Plus Turf Herbicide.
Q4 Plus Turf Herbicide is a post-emergent herbicide, so it will only be effective on existing plants that are actively growing. You do not want to apply in the fall when fall is transitioning into winter when plants are not activelt growing because they will not be able to absorb the product. The best temperatures to apply in are between 55 degrees and 90 degrees. So now would be a great and safe time to apply.
Q4 Plus Turf Herbicide does not require the use of a surfactant.
Q4 Plus Turf Herbicide is not labeled to control dallisgrass. Please review our How to Get Rid of Dallisgrass Treatment Guide for information on eradicating this weed.
Per the Q4 Plus Turf Herbicide label for warm season grass you will apply 5 - 7 pints per acre.
As for the amount of water the label states the following and varies depending on the type of sprayer:
For Conventional Spray Equipment: 50 to 220 gal/acre
For Low Volume Spray Equipment: Equipment should be calibrated to apply at least 20 gallons per acre
Q4 Plus Turf Herbicide could injure turf if applied in temperatures above 90 degrees. Treating in these temperatures is usually not effective post control for weed control as well. The turf gets under stress in the higher temperatures.
Q4 Plus Turf Herbicide will not harm your putting green, as long as the turf is listed as tolerant on the label and you apply when temps are below 80 degrees.
Q4 Plus Turf Herbicide is rainfast after 6 hours but is best applied when there is no rain expected within 24 hours after application. It is more if there are dry conditions that you need to water 24 hours before or after application. Per the product label if rainfall is not expected within 2 - 7 days you should water in yourself 1/2 inch as recommended.